Electric starter for internal-combustion engines



March 9 1926. 1,575,702

A. H. MIDGLEY ELECTRIC STARTER FOR INTERNAL COMBUSTION ENGINES Filed April 5, 1922 2 Sheets-Sheet 1 March 9,1926. 1,575,702

. A. H. MIDGLEY ELECTRIC STARTER FOfi INTERNAL COMBUSTION ENGINES Filed A ril s, 1922 2 Sheets-Sheet 2 A. H. Nidgley mm dQll/J'Q %5 Y pas-the starting switch.

the'casing-and the latter indicated in broken Arianamin?Minster;orf-uxisnrnen, ENGLAND, nssreivonj rorrine EY GA iQ,raerrrrnej conrnny; m vrrrnn, or, LoNnomgE eLAnn; v

' Patented Mar. 1926;

nnncrnio sran'rnn'ron INrEnNAL-coinsus'rmn ENGINES; 7

q Apiilica t ibn filed April 3,1922. SerialNo. 549,330. L I

' To all whom it mag borrower L Be-it known that'L'ALBnRrHENiifMind ar a subjectflof the King-ofGreat-Britain and .:-Ireland,. and: residing at "Fairfield, HarefieldiRoad',

Starters for Internal-Combustion Engines,

This invention relates to; electric starters [for] internal combustion e-ngmes wlth particulaif reference to; those vzemplo yed in 'con fne'ctionjvith motor or other vehicles and oit'kthe kindyiirwhich one or moreof the;

brushes ofthe startingmotor is or are used "The object of the present invention is to devise improved means/for controlling the movable brush orbrushes whereby the O1)? eration of the apparatus may be made more fcertain and effective in practice so that there will be'no'; danger of the position of the brushes not corresponding with that of the starting switch 7501" other operative member by which the brushes will becontrolled. With these and other objects in view the invention consists in the novel arrangements andcombinations hereinafter'described and illustrated and'pointed out in the appendant-claims" I The accompanying drawings illustrate 'one' m'odeof carrying 'out the invention.

,starterand brushlgear in accordance with '7 line 3,-3 of Fig. "1, showing the manner of Figure 1 is an elevation ofone form of the invention, the same being removed from lines;

"Figure 2 is a view taken in thereverse direction and showing the start-er brushes in the normal non-starting position the posi tion of the leasing being shown in. broken lines. "r

, Figure is a sectional-view taken on the arrang ng the star-terand brush gear in the casing.

, plane 'Figure 4: isa detail section taken in the oi one of. the screws securing the brush holder supporting ring in the casing.

"In carrying my invention into effect in one convenient manner I provide the usual, battery for supplying current for the lighting and ignition systems and the usual switch-b card for controlling a the lighting U xbridge in the county of "Middlesem':England, have invented certain n-ew and usefulImprovements in'Elec-tric andignition circuits neither the batteiy nor Thessw itch-board is also provided with a lever or {other operative device connected to one end of a Bow'den wire a or like flexible controlling member adapted to control the starting circuit in a manner hereinafter described.

comprises four brnsh-holdersd 03, two of which (namely those marked d) are movable for the purpose of enabling the brushes to be moved out of or into contact with the In the particular'form,shewn the starter" The starter illustrated the drawings a Fig. am the outside b. of; which passes an adjustable b adaptedto accommodate the Bowcommutator so that such movable-brushes may be employed in known manner as the starting switch. The parts are held in place in the casing a by means of the screws f passing throughslotted apertures in the ears f of the ring 'f -whichcarries the brush holders, and behind which the ring 0 is mounted for rotation on the centralboss g.'

' Themovable brush-holders are provided with arms or projections d adapted to contact with pins or the like 0" upon the arms I 0 of the ring 0 and between theflange b.

on the member Z) and the member 6'' is a spring 6 of sufficient strength so as normally to hold the ring a in such a'position that a the movable brush-holders d are held against their controlling springs (Z so that the brushes in such bruslrholders are nor mally out of contact with the commutator, the position of the parts being as shewn 1n.

Figure'Q. 7

When it is required to bring the starter into operation the starting leverorswitch' is utilized to pull upon the Bowden wire a.

thereby moving the ring 0 against the force exerted by the spring a in such a "manner thatthe movable brushes are allowed to' come'into contact with the commutator seg'- ments thus completing the circuit and starting the motor. I

The lever or other operative device for :actuatingthe Bowden wire control is prefel'aLblv ziisointeflocked with the ignition switch 50 that the mptorcannot he started .btush havingg an extension the rqon, -hztving a pin adapted to contact *'vi th" said (Extension; 2 spting cont "as lib-finally. to 'hold the b-i'ush away front :t-he commutator segments and a Bowd'en {wire until'jthe ignition circuit has been inserted. 7 Having now describedmy invention what I .claim "asneivnnd desireito secuirelby Let- :ti's Patent is "1' f h 1. "In an'el ectl'lcfstarter for internal, coin- 1 bustion engin'gis cqmpi'ising; motor having 1 commutator and a movable brush in con-- nection .therwith} to serve as the starting switch, means for continuing movable brushqmpi'ising a 1 brush-holder said 'aring l'l-ing said so 01 overcoming the foi' e of said spring to allow the brush toycontaqt with; the- (3011]- pmta-to-r segments, substantially as described.

3 2.1m, an 'elcgt'i c starter for internal Comibust ioni engines conip is-ing motor having a cornlnutzitorfland {movable brushesin con- ,switqh lneans for controlling the movable? s nnrma-ily to hold-the -;1n0vab1e brushes,

member 01 1t of contact with the "extension contnoliing said briishrholders .to bring 'th Bowden Wiqa V neotion therewith to SQiVG as a starting 3 brushes comprising brush-holders 01 said movable brushes having extensions thereon, a, rotary nembeiiz uhaving pins ;i;l11' 01l' adapted-to Contact with said j extnsions," a i spring cb-ntrol'ling said rotary im'embejr. so

out of- Contact \vitlftlme fnolnlnutator seg; IDQIltS, 5a,. Bmvdgn Wire for rotating Said? rotary in'en'lbei against theaction Of said spring so as to move the pins on; the rtd on thevmovatble brush-holders and spring brush-es into on-tact with the '.COInmuta3tOr segments when thBfO-IQG of spring ,controh ling said mtary member .l sfovercoinefbywthe In testimony whereo-f'FI have sign ci my} nameto this SPQCifiQa tiOII.

v ALBERT IDGLEYJ 

